Percents Test Review - Required for HW

15 is 75% of what number?

• 90

• 15

• 25

• 20

 Shirley spelled 12 of her 15 spelling words correctly on the test.  What percent grade did Shirley get on the test?

• 40%
• 50%
• 80%
• 60%

Find the percent of change.

From 20 miles to 11 miles.

• 45% decrease

• 45% increase

• 82% decrease

• 82% increase

The students measured length during a science experiment, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?

• 15.79%

• 18.75%

• 2.25%

• 18%

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  

• 15%
• 20%
• 25%
• 30%

Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?

• 35%
• 67%
• 85%
• 92%

Mike went to Beggar's with his family. Their total bill was $65.41 and they wanted to leave a 20% tip. How much of a tip did they leave?

• $13.082

• $13.08

• $14.00

• $13.00

Mrs. Adele is buying a new tie from Macy's. It says the tie costs $15.00 but there is a sign above it that says 25% off. How much will the tie cost?

• $3.75

• $18.75

• $15.25

• $11.25

Find the simple interest earned for principal of $2,000 at and 8% rate for 5 years.

• $160

• $800

• $80,000

• $16

After 12 years, a deposit of $10,000 into your college account has earned $6,000 in interest payments. What simple interest rate did the account earn?

• 50%

• 5%

• 500%

• 7.5%